ADOT Blog | Department of Transportation

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Aerial view of Hance Park.

08/10/2026

Forever linked: The I-10 tunnel and Hance Park have different birthdays

While the I-10 Deck Park Tunnel turns 36, younger "sibling" Margaret T. Hance Park maintains its place as a space for the community to gather.

Loop 303 project

08/07/2026

Big freeway construction project is in its early stages south of I-10 in Goodyear

The opening of a well-known travel center featuring a beaver mascot in Goodyear made a lot more news this summer than the start of ADOT’s latest freeway construction project, also in that West Valley city. The project to extend Loop 303...

Close-up view of textured grooves on a concrete road surface, with blurred vehicles and highway scenery in the background under a partly cloudy sky.

08/05/2026

What is diamond grinding?

You may have heard that diamond grinding is currently being used on the SR 51, I-10 to Shea Blvd pavement project and the pavement improvement projects on the Loop 101 Agua Fria and Pima freeways. But what does that actually mean? Diamond...

Popular blog articles

South Mountain Freeway work zone on Interstate 10

01/12/2018

Focus On Driving: Crashes in work zones spike in January

On average, more crashes occur in work zones in January in Arizona than in any other month.

Old photo of I-15 Construction

01/11/2018

From the Archives: Construction through the mountains of northwestern Arizona

Road construction can be a challenge on a good day, but is especially challenging when building a road through the mountains.

Image of DMS that reads "Heavy rain, Low visibility, Slow down"

01/09/2018

A tip that works for snow, ice or rain: Slow down

Please keep safety in mind regardless of where you are driving over the next day or two.

A brick and metal visitor center with a tall tower structure, information boards, and a clear blue sky in the background.

01/08/2018

Renovations increase rest areas' value to travelers

It's remodel time at the Sacaton Rest Area! In addition to a new look, the rest area will be getting needed sewer and electrical upgrades.

Two old tires stacked

01/05/2018

Continuous Improvement: Repurposing spare tires saves time, money

ADOT's culture of continuous improvement looks has employees looking for cost savings everywhere, including the trunk of old vehicles.

I-19 construction in 1964 aerial view

01/04/2018

From the Archives: Aerial view of Interstate 19

We're taking it back to the mid-60s today and construction of the only highway in the country still using the metric system.

Traffic cones and cars on road

01/03/2018

On Alert: ADOT maintenance crews on call and ready to respond

ADOT crews that fix guardrails and fill potholes also assist whenever they are needed on traffic incidents.

HOV stencil and truck

01/02/2018

After pavement sealing, an employee invention helps reopen freeway sooner

An ADOT innovation gets drivers back on the freeway faster after a maintenance closure.

12/31/2017

Where in AZ?? 1/31/17

We have one last "Where in AZ??" challenge before the year ends!

Highway sign at night reads: Just buzzed? Nice try, thats a DUI. Cars are visible on the road.

12/29/2017

Plan ahead for New Year’s Eve revelry

Make plans now for your sober ride home on New Year's Eve.